Insect morphology

Head features

A number of features on the headhead:
one of the three main body segments in insects; the anterior-most segment containing the many sensory structures including the eyes, antennae, and mouthparts
can be useful for identification.

Head diagrams

ant head
beetle head
grasshopper head
psyllid head

Antennae types

pouch-like: flies
elbowed: ants, beetles
moniliform: flies
setaceous: true bugs, beetles, katydids
filiform: true bugs, butterflies, moths, grasshoppers, beetles
bristle-like: true bugs


sponging: flies
siphoning: butterflies and moths
chewing: ants, beetles, katydids, grasshoppers
piercing-sucking: true bugs, thrips